Legacy Private App Creation Being Disabled
HubSpot is permanently removing the ability to create new legacy private apps through the account UI. Users should migrate to Service Keys available in Developer Platform Projects 2026.09 or later for system-to-system integrations; existing legacy private apps remain unaffected.
HubSpot is permanently removing the ability to create new legacy, non-Project based, private apps through the account UI. Users needing similar functionality should use Service Keys, available via Developer Platform Projects version 2026.09 or later, which supports system-to-system integrations. This sunset impacts customer accounts on two timelines based on their age. All existing legacy private apps are not affected at this time.
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